Calender

Details Calender Calender

1981-02-06

1983-06-28

Feldman, Peter

Presses

Concurrent pressing and conveying

Roll type

29116AD, 100170, B30B 304

Patent

active

043899331

ABSTRACT:
A calender wherein the lowermost roll of the roll train has a hollow cylindrical member spacedly surrounding a shaft-like carrier whose end portions are mounted in bearings movable up and down along guide rails on the stand. The end portions of the cylindrical member contain inserts serving to confine the cylindrical member to vertical reciprocatory movements relative to the carrier. The cylindrical member further contains a battery of cylinder and piston units which maintain the cylindrical member in an upper end position relative to the carrier. Additional cylinder and piston units maintain the carrier in an upper end position relative to the stand by urging shoulders which are provided on the bearings against stationary stops on the stand. The inserts prevent vibration of the cylindrical member relative to the carrier and the carrier is held against vibration relative to the stand because the stops for the bearings are disposed at one side of the vertical plane including the axis of cylindrical member and the axes of plungers forming part of the additional cylinder and piston units whereby the bearings jam against the respective guide rails. The distance through which the cylindrical member can descend relative to the carrier plus the distance through which the carrier can descend relative to the upper rolls suffices to provide room for removal of any selected roll from the stand. Further cylinder and piston units are provided to bias the uppermost roll of the train toward the roll therebelow.

REFERENCES:
patent: 2861504 (1958-11-01), Kane
patent: 3777656 (1973-12-01), Muller
patent: 3884140 (1975-05-01), Christ et al.
patent: 3948166 (1976-04-01), Wenzel
patent: 4074624 (1978-02-01), Biornstad et al.
patent: 4290351 (1981-09-01), Pav et al.
patent: 4311091 (1982-01-01), Pav et al.
patent: 4319522 (1982-03-01), Marchioro et al.

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